Shielding effectiveness properties of carbon-fiber reinforced composite for HIRF applications

Greco, S.; D’Aloia, Alessandro Giuseppe; Mufatti, R.; Sarto, Maria Sabrina

doi:10.1109/emceurope.2012.6396702

Cited by 21 publications

(14 citation statements)

References 9 publications

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“…Similar approaches have been developed to model composite materials as reported in [24], [25], but never applied to define an equivalent single layer model of a laminated graphene/dielectric film.…”

Section: Equivalent Single Layer Of a Multilayer Screenmentioning

confidence: 94%

“…8(a), having thickness , is modeled as an ESL of thickness , made of an effective dispersive material having the same relative dielectric permittivity of the dielectric interlayer (SiO ) of the GL, and a frequency dependent effective electrical conductivity , which is calculated following the procedure described in [25].…”

Section: Equivalent Single Layer Of a Multilayer Screenmentioning

confidence: 99%

See 1 more Smart Citation

Terahertz Shielding Effectiveness of Graphene-Based Multilayer Screens Controlled by Electric Field Bias in a Reverberating Environment

D’Aloia

D’Amore

Sarto

2015

IEEE Trans. THz Sci. Technol.

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Innovative multilayered screens made of laminated graphene sheets, with SiO as interlayer, over a glass substrate are proposed as electrically-tunable electromagnetic shields at terahertz. The shielding effectiveness (SE) modeling is developed applying the transmission line method in a reverberating environment (i.e., with the screen surface illuminated by an infinite set of plane waves impinging with all possible propagation directions), which is of particular relevance in electromagnetic compatibility (EMC) studies. A new equivalent single layer (ESL) model of the graphene/SiO laminate (GL) is also proposed in order to provide a simple computationally-efficient method for the EMC design of GL shielding configuration via numerical EM tools. The approximate model is validated by comparison with the results obtained applying the exact one. The sensitivity analysis of the SE in reverberating environment is performed in the frequency range up to several tens of terahertz with respect to: the electric field bias of the graphene sheets, affecting their chemical potential level through an electrostatic carrier doping; the relaxation time characterizing the electron transport in graphene; the thickness of the SiO interlayers. Finally, the SE computed for different shielding configurations against a plane wave with normal or oblique incidence is compared with the one obtained in a reverberating environment in order to highlight the most significant differences at terahertz frequencies.

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Section: Equivalent Single Layer Of a Multilayer Screenmentioning

confidence: 94%

Section: Equivalent Single Layer Of a Multilayer Screenmentioning

confidence: 99%

Terahertz Shielding Effectiveness of Graphene-Based Multilayer Screens Controlled by Electric Field Bias in a Reverberating Environment

D’Aloia

D’Amore

Sarto

2015

IEEE Trans. THz Sci. Technol.

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“…The aircraft/spacecraft manufacturing industry is one of the areas that reinforced composite materials are widely used as a replacement for metals. The new composite materials like Composite material skin(CMS) (Aziz et al, 2012), Carbon fiber reinforced polymer(CFRP) (Bui et al, 2015;Abdelal, 2018;Munalli et al, 2019), Carbon fiber reinforced composites (CFRC) (De Rosa et al, 2009;Greco et al, 2012) and Graphite-epoxy (GrEp) (Bogorad et al, 2008) are used in aircraft/spacecraft construction. Instead of the physical and chemical advantages of these materials, the electrical conductivity of the composite materials is much lower than those metals (Evans, 1997).…”

Section: Kanberoğlu and Teşnelimentioning

confidence: 99%

Fiber Takviyeli Silindirik Kabuğun Ekranlama Etkinliğinin Analizi ve Simülasyonu

Kanberoğlu

Teşneli

2021

Mehmet Akif Ersoy Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The purpose of the paper is to analyze and simulate the shielding effectiveness (SE) performance of a fiber reinforced cylindrical shell. A matrix model is presented to evaluate the transmitted electromagnetic fields on the axis of cylindrical shell. SE performance of the cylindrical shell is calculated for various parameters such as radius of cylinder, shell thickness and shell conductivity. Also, a 3D model of the cylindrical shell is constructed via Computer Software Technology (CST) program to carry out the analytical results. The analytical calculations and simulations are performed for TM mode excitation. A good agreement is obtained by the comparison of analytical results and CST simulations.

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“…In previously published approaches, experimental measurements combined with inverse problem solving techniques allowed to deduce homogenized properties of composite materials. In [19], composite panels for aerospace applications were studied in low frequency, and in [20], different types of carbon fiber reinforced composites for air-vehicles have been considered in the range [100 kHz-18 GHz]. In this paper, simple analytical formulas are provided for metal grid composite materials used in the automotive industry and experimentally validated using a near-field test bench.…”

Section: Introductionmentioning

confidence: 99%

Homogenization of Metal Grid Reinforced Composites for Near-Field Low Frequency Magnetic Shielding

Achkar¹,

Pichon²,

Bensetti³

et al. 2021

PIER M

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The purpose of this paper is to provide simple analytical homogenization methods for composite materials containing a metallic wire grid. Estimating their effective electrical properties facilitates the numerical simulation of composite structures for shielding applications in the automotive industry. The presented methods are based on surface impedance approaches and effective media theory. The obtained results show that the shielding properties of the described wire grid composites can be accurately estimated and bounded, using the proposed theories in the low frequency range. The frequency limits vary according to the studied sample. For the presented materials, the validity of the results is shown to be up to a few megahertz. The experimental validation is done by measuring the shielding effectiveness of composite samples using a near-field test bench.

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Shielding effectiveness properties of carbon-fiber reinforced composite for HIRF applications

Cited by 21 publications

References 9 publications

Terahertz Shielding Effectiveness of Graphene-Based Multilayer Screens Controlled by Electric Field Bias in a Reverberating Environment

Terahertz Shielding Effectiveness of Graphene-Based Multilayer Screens Controlled by Electric Field Bias in a Reverberating Environment

Fiber Takviyeli Silindirik Kabuğun Ekranlama Etkinliğinin Analizi ve Simülasyonu

Homogenization of Metal Grid Reinforced Composites for Near-Field Low Frequency Magnetic Shielding

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